document.getElementById("myInput").onclick = function() {
    var input = document.getElementById("myInput");
    if (input.value == "万唯") {
      input.value = "";
    }
  };
  document.getElementById("myInput").onblur = function() {
    var input = document.getElementById("myInput");
    if (input.value == "") {
      input.value = "万唯";
    }
  };
  let gwc=document.getElementById('boxleft')
  gwc.onmouseenter=function(){
    gwc.style.backgroundColor='rgb(234, 225, 225)'
    gwc.style.color='red'
  }
  gwc.onmouseleave=function(){
    gwc.style.backgroundColor='red'
    gwc.style.color='rgb(234, 225, 225)'
  }
  document.getElementById("danginput").onclick = function() {
    var input = document.getElementById("danginput");
    if (input.value == "万唯") {
      input.value = "";
    }
  };
  document.getElementById("danginput").onblur = function() {
    var input = document.getElementById("danginput");
    if (input.value == "") {
      input.value = "万唯";
    }
  };